853520149425 has 12 divisors (see below), whose sum is σ = 1411153313840. Its totient is φ = 455210746320.

The previous prime is 853520149411. The next prime is 853520149453. The reversal of 853520149425 is 524941025358.

It is not a de Polignac number, because 853520149425 - 2¹² = 853520145329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5690134255 + ... + 5690134404.

Almost surely, 2^853520149425 is an apocalyptic number.

It is an amenable number.

853520149425 is a deficient number, since it is larger than the sum of its proper divisors (557633164415).

853520149425 is a wasteful number, since it uses less digits than its factorization.

853520149425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380268672 (or 11380268667 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 853520149425 in words is "eight hundred fifty-three billion, five hundred twenty million, one hundred forty-nine thousand, four hundred twenty-five".